INFLUENCE OF THE PREPARATION TECHNIQUE OF MgCl2/TiCl4 ZIEGLER-NATTA CATALYST ON THE PERFORMANCE IN ETHYLENE AND PROPYLENE POLYMERIZATION

被引：0

作者：

Marques, Maria ^{[1
]}

Almeida, Lidiane ^{[1
]}

Cruz, Kamilla ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, Caixa Postal 68525, BR-21941590 Rio de Janeiro, Brazil

来源：

CHEMISTRY & CHEMICAL TECHNOLOGY | 2010年 / 4卷 / 04期

关键词：

polyethylene; polypropylene; dealcoholation; fourth-generation Ziegler-Natta catalyst;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Different methods to remove the alcohol of adduct MgCl2 . nEtOH were studied to obtain Ziegler-Natta catalysts for evaluation in ethylene and propylene polymerization. Thus, the adduct MgCl2 . nEtOH was submitted to thermal dealcoholation, as well as chemical dealcoholation with different substances: titanium tetrachloride, triethylaluminum, and dichlorodimethylsilane. Thermogravimetric analyses (TGA) were performed to obtain information on the thermal characteristics of adducts and prepared supported catalysts. Ethylene and propylene homopolymerization were carried out with the prepared catalysts and the polymers were characterized.

引用

页码：291 / 296

页数：6

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